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[1-3] on a waste land near the Muroran Marine Experimental Station of Hokkaido University, Muroran City, on September 14 2015.456
[4/5] in the Arboretum of Faculty of Agriculture, Hokkaido University, close to the Poplar Street on June 24 2016. [6] in the Sapporo City Nature Education Park on September 19 2016.